U.S. patent application number 11/934043 was filed with the patent office on 2008-11-27 for pigment-adhering apparatus for a printer device.
This patent application is currently assigned to Lite-On Technology Corp.. Invention is credited to Chung-Yi Cheng, Ming-Chun Hsu, Cheng-Wen Tsai.
Application Number | 20080292375 11/934043 |
Document ID | / |
Family ID | 40072537 |
Filed Date | 2008-11-27 |
United States Patent
Application |
20080292375 |
Kind Code |
A1 |
Tsai; Cheng-Wen ; et
al. |
November 27, 2008 |
Pigment-Adhering Apparatus For A Printer Device
Abstract
A pigment-adhering apparatus for the printer device is provided.
The pigment-adhering apparatus includes a pressing roller having
two contacting components and a feeding component between the two
contacting components. The feeding component transports an printed
object to be printed and the pressing roller provides a pressure to
a heat conducting film. The contacting components make the heat
conducting film move with the pressing roller at the same
speed.
Inventors: |
Tsai; Cheng-Wen; (Taipei,
TW) ; Hsu; Ming-Chun; (Taipei, TW) ; Cheng;
Chung-Yi; (Taipei, TW) |
Correspondence
Address: |
BEVER HOFFMAN & HARMS, LLP;2099 Gateway Place
Suite 320
San Jose
CA
95110
US
|
Assignee: |
Lite-On Technology Corp.
Taipei
TW
|
Family ID: |
40072537 |
Appl. No.: |
11/934043 |
Filed: |
November 1, 2007 |
Current U.S.
Class: |
399/329 |
Current CPC
Class: |
G03G 2215/2035 20130101;
G03G 15/2064 20130101 |
Class at
Publication: |
399/329 |
International
Class: |
G03G 15/20 20060101
G03G015/20 |
Foreign Application Data
Date |
Code |
Application Number |
May 23, 2007 |
TW |
096118450 |
Claims
1. A pigment-adhering apparatus for a printer device, comprising: a
pressing roller having two contacting components, and a feeding
component placed between the two contacting components for feeding
a printed object; a heat conducting film pressed against the
pressing roller; a supporting structure having a notch and disposed
in the heat conducting film for supporting the heat conducting
film; and a heating apparatus disposed in the notch and contacting
with the heat conducting film, wherein the two contacting
components contact with the heat conducting film so that the heat
conducting film is moved by the two contacting components and
rotated together with the pressing roller.
2. The pigment-adhering apparatus for the printer device according
to claim 1, wherein the pressing roller further comprises a motor
driving the pressing roller, the two contacting components comprise
a rough surface pressing against a surface of the heat conducting
film, the two contacting components further comprise a plurality of
teeth engaging with the surface of the heat conducting film, and
the two contacting components have a diameter larger than that of
the feeding component.
3. The pigment-adhering apparatus for the printer device according
to claim 2, wherein the two contacting components and the feeding
component have separate arrangements, where the feeding component
is a feeding roller and the two contacting components are two
transmission wheels spaced from each other and disposed at both
ends of the feeding roller.
4. A pigment-adhering apparatus for a printer device, comprising: a
heat conducting film; a supporting structure having a notch and
disposed within the heat conducting film for supporting the heat
conducting film; a heating apparatus disposed in the supporting
structure, faced toward the notch and contacting with the heat
conducting film; and a pressing roller feeding a printed object for
pressing the printed object against the heat conducting film so
that the heat conducting film is firmly pressed against the heating
apparatus at the notch.
5. The pigment-adhering apparatus for the printer device according
to claim 4, wherein the pressing roller further comprises two
rotation transmission parts at its both ends, between which a
feeding component is disposed, the two rotation transmission parts
are pressed against the heat conducting film so that the heat
conducting film is moved by the two rotation transmission parts and
rotated together with the pressing roller, the feeding component is
coated with a material selected from one of
tetra-fluoroethylene-fluoro-alkylvinylethyl copolymer (PFA
material) and carbon powder, and the rotation transmission part is
made of a rubber.
6. The pigment-adhering apparatus for the printer device according
to claim 4, wherein the heating apparatus further comprises a
heating base disposing a heating component, the heating component
is selected from one of a halogen lamp and a ceramic heating
device, the heating component is suspended on the heating base for
radiating heat on the heating base, and the supporting structure
comprises a first supporting component and a second supporting
component disposed at both ends of the heat conducting film to
extend and secure the heating apparatus.
7. A film supporting mechanism of a pigment-adhering apparatus for
supporting a heat conducting film comprising a notch.
8. The film supporting mechanism according to claim 7, wherein the
pigment-adhering apparatus further comprises the heat conducting
film disposed on and supported by the film supporting mechanism,
and a heating apparatus contacts with the heat conducting film
through the notch.
9. A pigment-adhering apparatus for a printer device, comprising: a
pressing roller having two contacting components between which a
feeding component feeding a printed object is disposed; and a heat
conducting film contacting with the two contacting components and
driven by the two contacting components to rotate together with the
pressing roller.
10. The pigment-adhering apparatus for the printer device according
to claim 9, wherein a first friction coefficient exists between the
respective contacting component and the heat conducting film, a
second friction coefficient exists between the feeding component
and the heat conducting film, where the first friction coefficient
is larger than the second friction coefficient, the feeding
component is a feeding roller, the two contacting components are
two transmission wheels spaced between two ends of the feeding
roller, the feeding roller is co-axial with the two transmission
wheels, the two contacting components have a rough surface pressing
against a surface of the heat conducting film, the two contacting
components further comprise a plurality of teeth engaging with the
surface of the heat conducting film, the two contacting components
have a diameter larger than that of the feeding component, and the
heat conducting film further comprises a heating apparatus heating
by contacting with an inner surface of the heat conducting
film.
11. The pigment-adhering apparatus for the printer device according
to claim 10, further comprising: a supporting structure having a
notch and disposed within the heat conducting film; and a heating
apparatus disposed in the notch and contacting with the heat
conducting film.
12. The pigment-adhering apparatus for the printer device according
to claim 11, wherein the supporting structure comprises a first
supporting portion and a second supporting portion which are
respectively disposed at both ends of the heat conducting film and
fixed to the heat apparatus.
13. The pigment-adhering apparatus for the printer device according
to claim 11, wherein the heating apparatus further comprises a
heating base disposing thereon a heating component, the heating
component is selected from one of a halogen lamp and a ceramic
heating device, and the heating component is suspended on the
heating base for radiating heat on the heating base.
14. A pigment-adhering apparatus for a printer device having a
pressurizing apparatus, comprising: two contacting components; and
a feeding component disposed between the two contacting components
for feeding a printed object; wherein the pressurizing apparatus
exerts a pressure on a heat conducting film driven by the two
contacting components so that the heat conducting film is rotated
together with the pressurizing apparatus.
15. The pigment-adhering apparatus for the printer device according
to claim 14, wherein the pressurizing apparatus is a roller-like
structure and the two contacting components are formed at both ends
of the roller-like structure.
16. The pigment-adhering apparatus for the printer device according
to claim 14, wherein the two contacting components are two
transmission wheels, the feeding component is a feeding roller and
the two transmission wheels are separately disposed at both ends of
the feeding roller.
17. The pigment-adhering apparatus for the printer device according
to claim 14, wherein a surface friction coefficient of the two
contacting components is larger than that of the feeding
component.
18. The pigment-adhering apparatus for the printer device according
to claim 14, wherein a pressure exerted by the two contacting
components on the heat conducting film is larger than that exerted
by the feeding component.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to an apparatus of a printer
device, particular to a pigment-adhering apparatus for the printer
device.
BACKGROUND OF THE INVENTION
[0002] Please refer to FIG. 1 which was a side view of a
conventional pigment-adhering apparatus for a printer device. The
heating film 200 encircled a heater seat 201. A heater 202 was
disposed in the heater seat 201. A pressing roller 100 was driven
by a motor M and was separated from the heating film 200 to be
opposite to the heater 202 in order to exert a pressure on the
heating film 200. A printed object P was loaded a pigment D. When
the printed object P with the pigment D was pressed and transferred
through a pressing zone A located between the pressing roller 100
and the heating film 200, heat was transferred to the pigment D
through the heating film 200 and the pigment D was pressed into a
flat pigment D'. The most important thing relevant to the quality
of the printing was there were no slide between the printed object
P and the heating film 200. Thus, in the conventional printing as
shown in FIG. 1 the solution was to increase the surface friction
coefficient of pressing roller 100. Usually it meant that the
surface of the pressing roller became coarser. Therefore, the
surface of the heating film 200 was easy to be worn out. The
heating film 200 was early to be broken down, especially at high
printing speed, because the surface of the heating film 200 became
coarser in the conventional technique. When the surface of the
heating film 200 was pressed inwardly and carved to form a recess,
a pigment mark made of the pigment D would be accumulated into the
recess. Then, the pigment D was not printed and adhered on printed
object P or the pigment D in the recess was erroneously printed on
a wrong location of the printed object P. The quality of the
printing was bad.
[0003] Please refer to FIG. 2 which was a side view of another
conventional pigment-adhering apparatus for a printer device. The
pigment-adhering apparatus contained a pressing roller 100 against
which a heating film 200 was rolled and upon which the heating film
200 exerted a pressure. The heating film 200 encircled a film seat
203 which was connected to a printer housing B through a spring
204. The spring 204 provided an elastic force exerted on the
pressing roller 100 by means of the film seat 203 and the heating
film 200 so that the pressing roller 100 could be firmly adhered to
the heating film 200. The difference between the conventional
techniques of FIG. 1 and FIG. 2 was that in the conventional
technique of FIG. 2 in order to directly transfer a circling force
from the pressing roller 100 onto the heating film 2000, a driving
wheel 101 was respectively disposed at both ends of pressing roller
100 to directly press the driving wheel 101 against the heating
film 200 so as to avoid mismatching problem of a rotating speed
between the heating film 200 and the pressing roller 100. Because a
relatively large pressure existed between the pressing roller 100
and the heating film 200, a relatively large pressure existed
between the driving wheel 101 and the heating film 200. In order to
avoid distorting and wrinkling after the heating film 200 was
extruded and pressed by the driving wheel 101, a reinforcement part
210 was added and disposed at the inner periphery of the heating
film 200 which was located correspondent to the location of driving
wheel 101. The reinforcement part 210 was combined and fixed with
the heating film 200 to rotate together at the same time. By means
of the support by the reinforcement part 210, the heating film 200
would not be distorted by an extrusion and pressure of the driving
wheel 101. The heating film 200 could be smoothly driven by the
driving wheel 101.
[0004] In view of the conventional technique of FIG. 2, the part of
the heating film 200 with reinforcement part 210 was considered as
a rigid reinforcement zone 200b useful for enduring the pressing
and drawing of the driving wheel 101. A un-reinforcement zone 200a
was formed between the two reinforcement zones 200b, 200b. A
boundary line 200c was formed between the reinforcement zone 200b
and the un-reinforcement zone 200a. The reinforcement zone 200b at
the heating film 200 was a part having large hardness and density.
The un-reinforcement zone 200a was formed by the material of the
heating film 200. Because the material of the heating film 200 was
thin and soft, the un-reinforcement zone 200a had a low hardness
and density in comparison with the reinforcement zone 200b. Because
the physical properties of the un-reinforcement zone 200a and the
reinforcement zone 200b differed, the deformation amount of the
reinforcement zone 200b when the reinforcement zone 200b was
pressed by the driving wheel 101 was different from the deformation
amount of un-reinforcement zone 200a. The shrinkage, deformation,
twisting of the heating film 200 would occur at the boundary line
200c due to the difference in the deformation amounts at both sides
of the boundary line 200c and the life of the heating film 200 was
shortened.
[0005] It was difficult to combine the heating film 200 with the
reinforcement part 210, for example, by an adhesive. Because of the
above reasons, the adhesion force of the adhesive would gradually
lost and the film would separate from another part, the sliding
problem between the reinforcement part 210 and the heating film 200
would occur.
[0006] From the above, for the conventional pigment-adhering
apparatus for the printer device, a innovative device is needed to
be created to solve the sliding problem between the printed object
and the heating film and to avoid damaging the heating film when
the driving force of the pressing roller is maintained.
Furthermore, the device can be applied to the printing system of
carbon powers using a silicone oil when the driving force is
maintained or enhanced. Thus, how to rectify the foresaid
conventional drawback is the main purpose of the present
invention.
SUMMARY OF THE INVENTION
[0007] It is another object of the present invention to provide a
pigment-adhering apparatus for a printer device, comprising:
[0008] a pressing roller having two contacting components, and a
feeding component placed between the two contacting components for
feeding a printed object;
[0009] a heat conducting film pressed against the pressing
roller;
[0010] a supporting structure having a notch and disposed in the
heat conducting film for supporting the heat conducting film;
and
[0011] a heating apparatus disposed in the notch and contacting
with the heat conducting film,
[0012] wherein the two contacting components contact with the heat
conducting film so that the heat conducting film is moved by the
two contacting components and rotated together with the pressing
roller.
[0013] Preferably, the pressing roller further comprises a motor
driving the pressing roller, the two contacting components comprise
a rough surface pressing against a surface of the heat conducting
film, the two contacting components further comprise a plurality of
teeth engaging with the surface of the heat conducting film, and
the two contacting components have a diameter larger than that of
the feeding component.
[0014] Preferably, the two contacting components and the feeding
component have separate arrangements, where the feeding component
is a feeding roller and the two contacting components are two
transmission wheels spaced from each other and disposed at both
ends of the feeding roller.
[0015] It is another object of the present invention to provide a
pigment-adhering apparatus for a printer device, comprising:
[0016] a heat conducting film;
[0017] a supporting structure having a notch and disposed within
the heat conducting film for supporting the heat conducting
film;
[0018] a heat apparatus disposed in the supporting structure, faced
toward the notch and contacting with the heat conducting film;
and
[0019] a pressing roller feeding a printed object for pressing the
printed object against the heat conducting film so that the heat
conducting film is firmly pressed against the heating apparatus at
the notch.
[0020] Preferably, the pressing roller further comprises two
rotation transmission parts at its both ends, between which a
feeding component is disposed, the two rotation transmission parts
are pressed against the heat conducting film so that the heat
conducting film is moved by the two rotation transmission parts and
rotated together with the pressing roller, the feeding component is
coated with a material selected from one of
tetra-fluoroethylene-fluoro-alkylvinylethyl copolymer (PFA
material) and carbon powder, and the rotation transmission part is
made of a rubber.
[0021] Preferably, the heating apparatus further comprises a
heating base disposing a heating component, the heating component
is selected from one of a halogen lamp and a ceramic heating
device, the heating component is suspended on the heating base for
radiating heat on the heating base, and the supporting structure
comprises a first supporting component and a second supporting
component disposed at both ends of the heat conducting film to
extend and secure the heating apparatus.
[0022] In accordance with the present invention, there is provided
a film supporting mechanism of a pigment-adhering apparatus for
supporting a heat conducting film comprising a notch.
[0023] Preferably, the pigment-adhering apparatus further comprises
the heat conducting film disposed on and supported by the film
supporting mechanism, and a heating apparatus contacts with the
heat conducting film through the notch.
[0024] In accordance with the present invention, there is provided
a pigment-adhering apparatus for a printer device, comprising:
[0025] a pressing roller having two contacting components between
which a feeding component feeding a printed object is disposed;
and
[0026] a heat conducting film contacting with the two contacting
components and driven by the two contacting components to rotate
together with the pressing roller.
[0027] Preferably, a first friction coefficient exists between the
respective contacting component and the heat conducting film, a
second friction coefficient exists between the feeding component
and the heat conducting film, where the first friction coefficient
is larger than the second friction coefficient, the feeding
component is a feeding roller, the two contacting components are
two transmission wheels spaced between two ends of the feeding
roller, the feeding roller is co-axial with the two transmission
wheels, the two contacting components having a rough surface
pressing against a surface of the heat conducting film, the two
contacting components further comprise a plurality of teeth
engaging with the surface of the heat conducting film, the two
contacting components have a diameter larger than that of the
feeding component, and the heat conducting film further comprises a
heating apparatus heating by contacting with an inner surface of
the heat conducting film.
[0028] Preferably, the pigment-adhering apparatus further
comprises:
[0029] a supporting structure having a notch and disposed within
the heat conducting film; and
[0030] a heating apparatus disposed in the notch and contacting
with the heat conducting film.
[0031] Preferably, the supporting structure comprises a first
supporting portion and a second supporting portion which are
respectively disposed at both ends of the heat conducting film and
fixed to the heat apparatus.
[0032] Preferably, the heating apparatus further comprises a
heating base disposing thereon a heating component, the heating
component is selected from one of a halogen lamp and a ceramic
heating device, and the heating component is suspended on the
heating base for radiating heat on the heating base.
[0033] According to another aspect of the present invention, there
is provided a pigment-adhering apparatus for a printer device
having a pressurizing apparatus, comprising:
[0034] two contacting components; and
[0035] a feeding component disposed between the two contacting
components for feeding a printed object,
[0036] wherein the pressurizing apparatus exerts a pressure on a
heat conducting film driven by the two contacting components so
that the heat conducting film is rotated together with the
pressurizing apparatus.
[0037] Preferably, the pressurizing apparatus is a roller-like
structure and the two contacting components are formed at both ends
of the roller-like structure.
[0038] Preferably, the two contacting components are two
transmission wheels, the feeding component is a feeding roller and
the two transmission wheels are separately disposed at both ends of
the feeding roller.
[0039] Preferably, a surface friction coefficient of the two
contacting components is larger than that of the feeding
component.
[0040] Preferably, a pressure exerted by the two contacting
components on the heat conducting film is larger than that exerted
by the feeding component.
[0041] The foregoing and other features and advantages of the
present invention will be more clearly understood through the
following descriptions with reference to the drawings, wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0042] FIG. 1 is a schematic side view showing a pigment-adhering
apparatus for a printer device according to the prior art;
[0043] FIG. 2 is a sectional front view showing the structures of
another pigment-adhering apparatus for a printer device according
to the prior art;
[0044] FIG. 3 is a three-dimensional view showing a
pigment-adhering apparatus for a printer device according to the
present invention;
[0045] FIG. 4 is a schematic front view showing a pigment-adhering
apparatus for a printer device according to the present
invention;
[0046] FIG. 5 is a sectional side view showing a pigment-adhering
apparatus for a printer device according to the present
invention;
[0047] FIG. 6 is a sectional side view showing a pigment-adhering
apparatus for a printer device according to the present invention;
and
[0048] FIG. 7-9 are front views showing a pigment-adhering
apparatus for a printer device of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0049] The present invention will now described more specifically
with reference to the following embodiments. In order to improve
the drawbacks of conventional techniques of heat conducting film,
in this present invention, the improved method is to increase a
regional friction force between a heat conducting film and pressing
wheels so as to increase a driving force of the heat conducting
film and at the same time not to destroy the effect of the heat
conducting film.
[0050] Please refer to FIG. 3 which is a three-dimensional view of
a pigment-adhering apparatus for a printer device of the present
invention. Please refer to FIG. 4 which is a front view of a
pigment-adhering apparatus for a printer device of the present
invention. The pressing device 1 contains two contacting components
12, 12 and a feeding component 10. The two contacting components
12, 12 are respectively disposed at both ends of the feeding
component 10, i.e. at outer side of the pressing device 1. The
pressing device 1 is obviously a roller structure to be called as a
pressing roller 1. The pressing roller 1 is driven by a motor M
(only shown in FIG. 3) via a shaft 11 to transmit a rotating force
to a heat conducting film 2 through two contacting components 12,
12 to drive it to move. The heat conducting film 2 is supported by
a supporting structure 5 into which the heat conducting film 2 is
inserted. The supporting structure 5 contains a first supporting
component 51 and a second supporting component 52 which are
respectively disposed at both ends of the heat conducting film 2
pressed by the two contacting components 12, 12. The first and
second supporting components 51, 52 are used to support the heat
conducting film 2 to resist pressing from the contacting components
12, 12 and to maintain in its relatively suitable position when the
heat conducting film 2 is pressed against the pressing roller 1. A
heating apparatus 4 comprising a heating base 40 connected to the
supporting structure 5 and a heating component 41 (shown in FIG. 3)
disposed in the heating base 40, is disposed in the supporting
structure 5. Usually the heating component 41 is hung in the
heating base 40 and does not contact with the heating base 40. The
heating component 41 irradiate on the heat seat 40 to make its
temperature increase. The vertical position of the heating base 40
can be slightly regulated by two pressing springs 53, 53 according
to exerting force of the pressing springs 53, 53. In order to
completely support the heat conducting film 2, the supporting
structure 5 can pass through the heat conducting film 2, i.e. the
first supporting component 51 can extend all the way to the second
supporting component 52 as a whole.
[0051] Please refer to FIG. 5 which is a side view of the
pigment-adhering apparatus for a printer device of the present
invention. The heat conducting film 2 and the pressing roller 1 are
disposed adjacent to each other. The pressing roller 1 is driven by
the shaft 11 and a printed object P is inserted therebetween. The
supporting structure 5 in the heat conducting film 2 has a notch 50
useful for placing the heating apparatus 4. In FIG. 5, the heating
base 40, heating component 41 and the heat conducting film 2 are
placed relative to the position of the supporting structure 5. A
pressing spring 53 is mounted on the supporting structure 5. Please
refer to FIG. 6 which is side view of the pigment-adhering
apparatus for a printer device of the present invention. The
drawing of the heating apparatus 4 is ignored to significantly show
a design of the notch 50. Because of the design of the notch 50,
the cross section of the heat conducting film 2 is not circular and
is exhibited to be planar near the notch 50. A advantage of the
notch 50 is that when the heat conducting film 2 is pressed by the
pressing roller 1, the area of the heat conducting film 2 which is
pressed against the pressing roller 1 can be larger. In theory, the
width of the notch 50 is bigger, the width 50w which is extended by
the heat conducting film 2 is larger. The width 50w shall not be so
large that the shape of the heat conducting film 2 deviate from a
shape of circle and that the heat conducting film 2 can not be
driven to move smoothly. Please refer to FIGS. 5 and 6. If a
thickness of the printed object P changes, the distance between the
pressing roller 1 and the heat conducting film 2 varies. If the
thickness of the printed object P is smaller, the heat conducting
film 2 is forced to be pressed downwardly to approach the pressing
roller 1 by a elastic force of the pressing spring 53. On the
contrary, if the thickness of the printed object P is larger, the
heat conducting film 2 is forced to be moved upwardly to drive the
supporting structure 5 move upwardly so that the pressing spring 53
can absorb upward movement of the supporting structure 5 and can
provide a enough elastic force toward the heat conducting film 2 in
order to firmly press against the pressing roller 1. Then, it can
be confirmed that the pressing roller 1, printed object P, heat
conducting film 2 and the heating base 40 are firmly contacting
with each other in order to make the heating process more
homogeneous. Because the width 50w become larger, a spot on the
printed object P is heated for longer duration for absorbing enough
heat, the hot stamp can obtain better effects. Therefore, the
printing speed can increase.
[0052] Please refer to FIGS. 7-9 which are front views of the
pigment-adhering apparatus for a printer device of the present
invention showing the working examples. From FIG. 7, the pressing
roller 1 contains two contacting components 12, 12 and a feeding
component 10. The two contacting components 12, 12 are disposed at
both ends of the feeding component 10 which are outer side of the
pressing roller 1. The pressing roller 1 is driven to move by the
motor M via the shaft 11. The heat conducting film 2 is driven to
move by the friction force between the heat conducting film 2 and
the two contacting components 12, 12.
[0053] In the working example of FIG. 8, the pressing assembly 3
contains a feeding roller 30 and two transmission wheels 31, 31
which commonly use the shaft 11. The difference between FIG. 7 and
FIG. 8 is that the transmission wheel 31 is obviously separated
from the feeding roller 30. The transmission wheel 31 and the
feeding roller 30 can be dismantled and mounted respectively. The
space occupied by the transmission wheel 31 and the feeding roller
30 is divided. The foreign bodies adhered on the feeding roller 30
and the remnants after friction the transmission wheel 31 will not
move to a surface of the other side. It will insure the efficiency
of feeding a printed object by the feeding roller 30 and the
efficiency of driving the heat conducting film 2 by the
transmission wheel 1.
[0054] In the working example of FIG. 9, the feeding roller 30 is
separated from the two transmission wheels 31 and is not co-axial
with the two transmission wheels 31. The feeding roller 30 is
connected to a motor M via a feeding shaft 30a while the
transmission wheel 31 is connected to the motor M via a wheel shaft
31a. Please refer to FIG. 6. a contacting component 12 is specially
designed on the pressing roller 1 and used to directly contact with
the heat conducting film 2 to directly drive it. One method of them
is to applying tetra-fluoroethylene-fluoro-alkylvinylethyl
copolymer (PFA material) or other materials which can render the
carbon non-sticking on the feeding component 10. The above
materials are not applied on the surface of the contacting
component 12. A rubber of high sticking property which is a
material of the pressing roller 1 can contact with the heat
conducting film 2 to smoothly drive it. Alternatively, a material
of high friction coefficient is applied on the surface of the
contacting component 12, for example, the surface of the contacting
component 12 is formed as rough surface of protrudents to form a
sand paper-like surface to be pressed into the heat conducting film
2. Alternatively, a teeth-like structure is formed on the surface
of the contacting component 12 to engage the heat conducting film 2
to drive by force. In the working example of FIG. 8, the
transmission wheel 31 can be substituted by a roller having
concentrated engraved marks or raised surfaces. Therefore, if the
pressure on the heat conducting film 2 is not increased, the
driving force of the pressing roller 1 to drive the heat conducting
film 2 is increased in the present invention. Please refer to FIGS.
4-6. Because a notch 50 is formed on the supporting structure 5 of
the present invention, the pressing force exerted by the contacting
component 12 on the heat conducting film 2 is simply increased in
order to increase the driving force on the heat conducting film 2.
In the same way, in the working example of FIG. 9, the pressing
force exerted by the transmission wheel 31 on the heat conducting
film 2 is simply increased and the pressing force received by the
heat conducting film 2 is absorbed by the supporting structure
5.
[0055] In conclusion, the creativity and inventive step of the
present invention are that the heat conducting film 2 can be driven
by means of the contacting component 12 shown in FIGS. 3 and 7 or
by means of the transmission wheel 31 shown in FIGS. 8 and 9 in
order that the heat conducting film 2 and the printed object P both
are moved at the same speed to avoid sliding between the heat
conducting film 2 and the printed object P and unclearly printing.
Because arc sliding of the heat conducting film 2 happens on the
notch 50 of the supporting structure 5 and no other objects are
added on the heat conducting film 2, the heat conducting film 2 is
an object of even density and the difference in regional structure
of the heat conducting film rendered by other added components on
the heat conducting film in prior arts will not happen so as not to
be deformed because the pressing roller drives at the adjacent
regions having different structures. Furthermore, by means of the
notch of the supporting structure, the area of the heat conducting
film contacting with the contacting component increases in order to
receive more driving force and the area of heating increases in
order to increase the transferred heat amount. In other words, at
the same condition that same amount of heat is input in the
conventional printing apparatus, the present invention can decrease
the duration of printed object P stayed between the heat conducting
film 2 and the pressing roller 1 and the printing speed increases.
The printing quality and efficiency of the pigment-adhering
apparatus for the printer device of the present invention
increase.
[0056] While the invention has been described in terms of what is
presently considered to be the most practical and preferred
embodiments, it is to be understood that the invention needs not be
limited to the disclosed embodiments. On the contrary, it is
intended to cover various modifications and similar arrangements
included within the spirit and scope of the appended claims which
are to be accorded with the broadest interpretation so as to
encompass all such modifications and similar structures.
* * * * *